3Com Switch 8800 Family Configuration Guide

380 CHAPTER 33: BGP CONFIGURATION
does not need to know the status of internal sub-ASs, and the confederation ID is
the AS number identifying the confederation as a whole.
Perform the following configuration in BGP view.
By default, the confederation_ID is not configured.
The configured confederation_ID and the existing AS number of a peer or peer
group cannot be the same.
Configuring sub-AS belonging to the confederation
Configure confederation_ID first, and then configure the sub-AS belonging to the
confederation. One confederation includes up to 32 sub-AS.
Perform the following configuration in BGP view.
By default, no autonomous system is configured as a member of the
confederation.
The configured sub-AS number is valid only inside the confederation. In addition,
the number cannot be the same as the AS number of a peer in the peer group for
which you have not configured an AS number.
Configuring AS confederation attribute compatible with nonstandard
If it is necessary to perform the interconnection with the devices whose
implementation mechanism is different from that of RFC1965, you must configure
all the routers in the confederation.
Perform the following configuration in BGP view.
By default, the configured confederation is consistent with RFC1965.
Tabl e 385 Configure confederation_ID
Operation Command
Configure confederation_ID confederation id as-number
Cancel confederation_ID undo confederation id
Tabl e 386 Configure sub-AS belonging to the confederation
Operation Command
Configure a confederation consisting of which
sub-ASs
confederation peer-as as-number-1 [ ...
as-number-n ]
Cancel the specified sub-AS in the
confederation
undo confederation peer-as [ as-number-1
] [ ...as-number-n ]
Tabl e 387 Configure AS confederation attribute compatible with nonstandard
Operation Command
Configure AS confederation attribute
compatible with nonstandard router
confederation nonstandard
Cancel AS confederation attribute compatible
with nonstandard router
undo confederation nonstandard